static bool isl29018_read_lux(struct i2c_client *client, int *lux)
{
int lux_data;
struct isl29018_chip *chip = i2c_get_clientdata(client);
lux_data = isl29018_read_sensor_input(client, COMMMAND1_OPMODE_ALS_ONCE);
if (lux_data > 0) {
*lux = (lux_data * chip->range) >> chip->adc_bit;
return true;
}
static bool isl29018_read_ir(struct i2c_client *client, int *ir)
{
int ir_data;
ir_data = isl29018_read_sensor_input(client, COMMMAND1_OPMODE_IR_ONCE);
if (ir_data > 0) {
*ir = ir_data;
return true;
}
return false;
}
static int isl29018_read_ir(struct i2c_client *client, int *ir)
{
int ir_data;
ir_data = isl29018_read_sensor_input(client, COMMMAND1_OPMODE_IR_ONCE);
if (ir_data < 0)
return ir_data;
*ir = ir_data;
return 0;
}
static int isl29018_read_lux(struct isl29018_chip *chip, int *lux)
{
int lux_data;
lux_data = isl29018_read_sensor_input(chip, COMMMAND1_OPMODE_ALS_ONCE);
if (lux_data < 0)
return lux_data;
*lux = (lux_data * chip->range * chip->lux_scale) >> chip->adc_bit;
return 0;
}
static int isl29018_read_proximity_ir(struct isl29018_chip *chip, int scheme,
int *near_ir)
{
int status;
int prox_data = -1;
int ir_data = -1;
struct device *dev = regmap_get_device(chip->regmap);
/* Do proximity sensing with required scheme */
status = regmap_update_bits(chip->regmap, ISL29018_REG_ADD_COMMANDII,
COMMANDII_SCHEME_MASK,
scheme << COMMANDII_SCHEME_SHIFT);
if (status) {
dev_err(dev, "Error in setting operating mode\n");
return status;
}
prox_data = isl29018_read_sensor_input(chip,
COMMMAND1_OPMODE_PROX_ONCE);
if (prox_data < 0)
return prox_data;
if (scheme == 1) {
*near_ir = prox_data;
return 0;
}
ir_data = isl29018_read_sensor_input(chip, COMMMAND1_OPMODE_IR_ONCE);
if (ir_data < 0)
return ir_data;
if (prox_data >= ir_data)
*near_ir = prox_data - ir_data;
else
*near_ir = 0;
return 0;
}
static int isl29018_read_ir(struct isl29018_chip *chip, int *ir)
{
int ir_data;
ir_data = isl29018_read_sensor_input(chip,
ISL29018_CMD1_OPMODE_IR_ONCE);
if (ir_data < 0)
return ir_data;
*ir = ir_data;
return 0;
}
static int isl29018_read_proximity_ir(struct i2c_client *client, int scheme,
int *near_ir)
{
int status;
int prox_data = -1;
int ir_data = -1;
/* Do proximity sensing with required scheme */
status = isl29018_write_data(client, ISL29018_REG_ADD_COMMANDII,
scheme, COMMANDII_SCHEME_MASK, COMMANDII_SCHEME_SHIFT);
if (status) {
dev_err(&client->dev, "Error in setting operating mode\n");
return status;
}
prox_data = isl29018_read_sensor_input(client,
COMMMAND1_OPMODE_PROX_ONCE);
if (prox_data < 0)
return prox_data;
if (scheme == 1) {
*near_ir = prox_data;
return 0;
}
ir_data = isl29018_read_sensor_input(client,
COMMMAND1_OPMODE_IR_ONCE);
if (ir_data < 0)
return ir_data;
if (prox_data >= ir_data)
*near_ir = prox_data - ir_data;
else
*near_ir = 0;
return 0;
}
static int isl29018_read_lux(struct i2c_client *client, int *lux)
{
int lux_data;
struct isl29018_chip *chip = iio_priv(i2c_get_clientdata(client));
lux_data = isl29018_read_sensor_input(client,
COMMMAND1_OPMODE_ALS_ONCE);
if (lux_data < 0)
return lux_data;
*lux = (lux_data * chip->range * chip->lux_scale) >> chip->adc_bit;
return 0;
}
static int isl29018_read_lux(struct isl29018_chip *chip, int *lux)
{
int lux_data;
unsigned int data_x_range;
lux_data = isl29018_read_sensor_input(chip, COMMMAND1_OPMODE_ALS_ONCE);
if (lux_data < 0)
return lux_data;
data_x_range = lux_data * chip->scale.scale +
lux_data * chip->scale.uscale / 1000000;
*lux = data_x_range * chip->calibscale +
data_x_range * chip->ucalibscale / 1000000;
return 0;
}
static int isl29018_read_lux(struct isl29018_chip *chip, int *lux)
{
int lux_data;
unsigned int data_x_range, lux_unshifted;
lux_data = isl29018_read_sensor_input(chip, COMMMAND1_OPMODE_ALS_ONCE);
if (lux_data < 0)
return lux_data;
/* To support fractional scaling, separate the unshifted lux
* into two calculations: int scaling and micro-scaling.
* lux_uscale ranges from 0-999999, so about 20 bits. Split
* the /1,000,000 in two to reduce the risk of over/underflow.
*/
data_x_range = lux_data * chip->range;
lux_unshifted = data_x_range * chip->lux_scale;
lux_unshifted += data_x_range / 1000 * chip->lux_uscale / 1000;
*lux = lux_unshifted >> chip->adc_bit;
return 0;
}
